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Cartoon representations of a cryoEM structure of ATP synthase (PDB entry 5ara), (a) using the method of Goodsell and Olson 17, (b) using interactive outlines and screen-space ambient occlusion in the Python Molecular Viewer 14, and (c) using the illustrative options in QuteMol 18. All are rendered using spheres at atom centers, and larger spheres are used in the first two to give a smoother look.
